Forum Discussion
RoyJ
Mar 11, 2021Explorer
Reisender wrote:
Never thought of that. I always assumed it would be a DC fast charging affair at a depot. More along the lines of an hour or two with a 500 KW or more 800 volt system. Who knows. But your idea may work. A couple of 19.2 KW 240 AC umbilicals overnight. That would deliver around 500 Kw overnight. Tesla used to put 19.2 KW chargers in their model S’s. An 80 amp EVSE (supplying the 19.2 KW) would run about 1000 bucks each. Maybe suspended from above? They are pretty small.
Interesting.
Keeping the heat on overnight wouldn’t use more than about 8 or 10 KW.
For the trucking industry to accept overnight charging, they'd have to do away without team drivers. Fast shipping would need a hub and terminal, where trailers are swapped for a fresh tractor.
But there's no reason why a semi can't charge as fast as a Tesla car. The distribution grid is the only limit. Right now in BC at least, BC Hydro would not run a 138kV transmission line unless it's a major industrial customer (foundry, pulp paper, etc). If every Flying J is fed at that voltage, new substations would be needed.
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